REPAIR/ REPLACEMENT OF DISINFECTION DOSING SYSTEM ALONG WITH AGITATOR DOSING TANK, CHEMICAL FEEDING PIPE LINE AND CONNECTED ACCESSORIES OF PH N 5, 8, 9 AT MIL STN AGARTALA

Amount

Taking out and re-fixing after servicing of chemical dosinging system motar & pump with agitator of capacity upto 1 HP including replacing of minor wornout parts to new parts complete all as specified and directed. Note: (i) Replacement i.e. supply and fix in major parts shall be measured & paid separately under appropriate item. Unit rate against above item shall be quoted accordingly. (ii) Rewinding of motor, if so required, shall be measured & paid separately.

Material & labour for re-winding of chemical dosinging system motar of feeding chemical pump/agitator motar with super enamelled insulated copper wire of existing gauge with same number of turns, providing insulated paper into the slots, complete in all respect and all as specified and directed

Material & labour for chemical dosing pump head of capacity upto 1 HP as per site requirment , complete all as specified and directed

Material & labour for chemical agitator mixer gearbox as per site requirment , complete all as specified and directed

Material & labour for PVC non return valve for suction & discharge of chemical dosing pump as per site requirment , complete all as specified and directed

Material & labour polypropylene (PP) tube for chemical dosing pump of size 5 mm to 10 mm as pe site requirment , complete all as specified and directed

Material & labour for chemical agitator rod for agitator motar as pe site requirment , complete all as specified and directed

Material & labour for chemical dosing tank (PVC body)with level marking print of capacity 200 ltr, including taking down old tank complete all as specified and directed

Taking up GI/PVC pipe Water mains(including all fittings) upto 50 mm bore complete all as directed.

M&L for filling Manganese di oxide (Mno2) of approved make as per OEM recommended layer Oxidation Chamber all as specified and directed.

S&F 15 mm bore upvc pipe with all fitting & fixed complete to walls or ceiling or laid in floors.

S&F 25 mm bore upvc pipe with all fitting & fixed complete to walls or ceiling or laid in floors.

Supply & fixing connecting and testing of pvc ball valve of size 15 mm bore and including taking down old unserviceable, complete all as specified and directed.

Supply & fixing connecting and testing of pvc ball valve of size 25 mm bore and including taking down old unserviceable, complete all as specified and directed.

Cutting hard standing / road for laying of pipe complete all as specified and as directed.

Material and labour for PCC (1:4:8) type D-2 (using 40mm graded aggregate) for filling and making good of disturbed surfaces of hard standing etc (for chemical dosing tank base) complete all as specified and as directed

Material & labour in repair for constraction of 230mm thick bnrick masonary valve chamber built in CM 1:6 of valve pit of size 900x900x1200mm (internal size) with 100mm thick foundation using PCC 1:4:8 type D2 with 100mm offset,15mm thick plastering internally and 15cm below GL externally in CM 1:6, 3mm thick MS sheet cover ,double/single door welded to 50mmx50mmx6mm MS angle iron fram fixed with hold fasts in PCC 1:2:4 tyupe B1 coping 50mm thick, 20mmx6mm flat iron hinges with loocking arrangement including lock 65mm brass and keys, MS handies and applying one coat of red oxide primer and two coats of synthetic enamel paint to all steel surfaces including excavation & earth work in any type of soil / rock and disposal of surplus soil to a distance not exceeding 50m complete all as specified and directed.

Materials & labour for earthing complete with galvanized earth plate electrode 600 x 600 x 6.0 mm thick, buried directly in ground (earth pit not less than 2.25 m deep below normal ground level ) with top edge of the plate not less than 1.5 m below normal ground level, connected to GI strip of size 32x6 mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel, earth strip protected by and including 40mm dia GI pipe(light grade), alternate layers of charcoal and salt, including 40 mm bore GI tubing (medium grade) for watering to earth electrode, earth strip connected to test point/ distribution panel /feeder pillar etc as directed including necessary earth work, concrete pit with PCC (1:3:6) type C1, pre cast RCC(1:1:5:3) type A1 cover slab duly reinforced with 8 mm dia TMT bar 150mm c/c both way and two numbers lifting handle made of TMT bar and set in cement mortar (1:4), funnel, wire mesh, all as shown in electrical plate No 5 of SSR part-1 and testing on completion

M & l Brick workwith sub class B bricks ,straight or curvded on plan built in cement mortar 1:4 including demolition of old brick work,complete all as specified and directed

Material and labour for construction of MS cover and frame including taking out of old damaged valve pit cover all directed by engineer-in-charg

Supply & fixing connecting and testing of CI sluice valve ,ISI marked duly embossed 300 mm bore both ends flanged,with CI body and brass spindel with bolts and nuts ,operating wheel etc.including taking down old unserviceable, non rising type class PN-1.6 including ,jointing material rubber gasket, complete all as specified and directed.

Disconnection and dismantling the defective DOL starter and supply and fixing new DOL starter for centrifugal pump up to 1.5 HP complete including all fixing arrangement and making electrical connections with motor and starter complete all as specified and directed.

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum. 2. Unless otherwise specified the rates for PCC shall deemed to include the cost of formwork shuttering etc, required for complete and proper execution of the work. Refer Schedule 'A' notes for details.

M/S PAUL ENTERPRISE (BID ID -3443381)